399994430

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1\times {\mathrm{227}}^1$

素因数の和:521

約数の個数: 64

約数和(自身を含む): 802545408

約数和(自身を除く): 402550978

約数列:

[1, 2, 5, 10, 11, 22, 55, 83, 110, 166, 193, 227, 386, 415, 454, 830, 913, 965, 1135, 1826, 1930, 2123, 2270, 2497, 4246, 4565, 4994, 9130, 10615, 12485, 16019, 18841, 21230, 24970, 32038, 37682, 43811, 80095, 87622, 94205, 160190, 176209, 188410, 207251, 219055, 352418, 414502, 438110, 481921, 881045, 963842, 1036255, 1762090, 2072510, 2409605, 3636313, 4819210, 7272626, 18181565, 36363130, 39999443, 79998886, 199997215, 399994430]

約数ペア:

[(1, 399994430), (2, 199997215), (5, 79998886), (10, 39999443), (11, 36363130), (22, 18181565), (55, 7272626), (83, 4819210), (110, 3636313), (166, 2409605), (193, 2072510), (227, 1762090), (386, 1036255), (415, 963842), (454, 881045), (830, 481921), (913, 438110), (965, 414502), (1135, 352418), (1826, 219055), (1930, 207251), (2123, 188410), (2270, 176209), (2497, 160190), (4246, 94205), (4565, 87622), (4994, 80095), (9130, 43811), (10615, 37682), (12485, 32038), (16019, 24970), (18841, 21230)]